A circular, single or multipiece item, metallic or nonmetallic in composition, designed to be fitted in a circumferential groove in a piston and to spring outward against the cylinder wall to function as a seal or wiper. It is supplied in various cross-sectional shapes and is cut through at one point to allow for installation in the piston ring groove. It may include an expander. Excludes packing, preformed; retainer, oil seal; retainer, packing; ring, retaining; ring wiper; and seal ring, metal.
Classification: Parts for steam turbines
NSN 2925-01-254-3068
NSN 6105-01-152-4191
NSN 5855-01-350-5540
NSN 6685-01-361-9979
NSN 5855-00-494-9581
NSN 5835-00-401-2578
NSN 6105-00-516-2151
NSN 6685-01-218-0792
NSN 5985-00-064-6416
NSN 5996-01-330-6047
NSN 5935-01-092-1058
NSN 5855-00-631-4565